16#1401 - 16#00000000
SD Memory Card Write-protected
Omron · SYSMAC N-Smart Series Library
What does 16#1401 - 16#00000000 mean?
An operation attempted to write data to an SD Memory Card that is currently protected against writing. This prevents any data modification or new file creation on the card.
Common Causes
- The physical write-protect switch on the SD Memory Card is in the LOCK position.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Locate the small switch on the side of the SD Memory Card.
- 2
Slide the switch from the LOCK position to the writable (unlocked) position.
Verified technical data. Last updated: March 2026
Related Faults
Source: Omron SYSMAC N-Smart Series Library